Link Audit: Find and Fix Hidden Link Problems
Link audit made simple: find broken, risky, and lost links before they frustrate visitors or weaken your website.
A link audit is a structured review of the links connected to a website, including internal links, outgoing links, and links from other websites. It helps you find broken destinations, redirect chains, orphaned pages, suspicious link patterns, and valuable links worth protecting or reclaiming.
Why a Link Audit Is More Than a Broken-Link Check
A website can contain thousands of links and still look perfectly healthy at first glance. The trouble is that links quietly age: pages disappear, URLs change, redirects pile up, old campaigns leave behind awkward anchor text, and important pages become disconnected from the rest of the site.
That makes a link audit less like spring cleaning and more like inspecting the roads in a busy city. You are not merely looking for potholes. You are asking whether people can reach the places that matter, whether the signs make sense, and whether any routes have become unnecessarily complicated.
The most useful audits examine both sides of the link ecosystem: internal links that connect pages on your own site and external links coming from other domains. Treating those as separate jobs is helpful operationally, but they tell one larger story about how a website is connected.
A good link audit does not simply find bad links; it identifies which links deserve attention first.
That distinction matters because not every weak-looking link is harmful, and not every missing link deserves a new page or a major technical project.
What a Link Audit Actually Looks At
A practical audit usually covers five areas: link health, link destinations, context, structure, and history.
Internal links
Internal links connect one page of your website to another. During an audit, you want to know whether important pages are easy to reach, whether links point to the correct URLs, and whether descriptive anchor text gives readers enough context.
Google recommends using crawlable HTML links with an href attribute, because those links can be reliably discovered and parsed. It also recommends descriptive anchor text that helps people understand the destination before clicking.
Imagine a product guide that discusses several related products but never links to the relevant product pages. Nothing is technically broken, yet the site’s information architecture is doing much less work than it could.
External links
These are links from your website to other domains. They deserve their own review because outdated references, dead resources, inappropriate destinations, or pages that have changed ownership can damage the usefulness of otherwise excellent content.
An external link that once pointed to a respected research paper might now lead to a generic homepage. The URL still resolves, but the link has quietly lost its original purpose.
Backlinks
Backlinks are links from other websites to yours. A useful audit examines where those links come from, which pages they reference, what the surrounding context says, and whether some links deserve recovery after a site migration or content change.
Tools such as Semrush and Ahrefs provide backlink datasets and analysis workflows, while Google Search Console provides its own links report. No single source should automatically be treated as a complete record, so comparing datasets can reveal useful gaps.
Redirects and status codes
A link does not have to return a 404 to be problematic.
For example:
Page A → Page B → Page C
If Page A links to Page B and Page B immediately redirects to Page C, the original link is outdated even though the visitor eventually reaches a working page. Screaming Frog recommends linking directly to the final destination rather than sending users through redirect chains.
Anchor text and context
Anchor text is the clickable wording of a link. “Read more” tells a reader almost nothing; “compare ceramic and stainless-steel cookware” gives useful context.
This is particularly important on large sites where dozens of links can point toward the same destination. A good audit checks whether the wording is clear, natural, and consistent with the destination.
Which Link Problems Should You Fix First?
Not every issue deserves equal priority. A useful way to think about an audit is to rank problems by impact × urgency × confidence.
| Issue | Typical impact | Priority |
| Important page linked to a 404 | High | Immediate |
| Redirect chain on heavily visited pages | Medium–High | High |
| Valuable backlink lost after migration | High | High |
| Orphaned important page | High | High |
| Irrelevant external link | Low–Medium | Medium |
| Generic anchor text | Low–Medium | Medium |
| One weak-looking backlink | Unclear | Review first |
| Large number of obvious spam links | Context-dependent | Investigate, don’t panic |
The key word is important. A broken link inside an obscure archived page is not necessarily more urgent than a single broken link on your homepage, pricing page, or highest-trafficked resource.
Prioritize links by what they affect, not by how alarming the spreadsheet looks.
That simple rule prevents a common audit failure: spending hours fixing low-value technical noise while the genuinely important problems remain untouched.
How to Run a Link Audit Step by Step
Step 1: Define the scope
Start by deciding what you are auditing.
For a small website, you can examine internal links, external links, redirects, and backlinks in one project. For a large ecommerce site, it may be smarter to audit the main site structure first and then perform a separate backlink review.
Also decide whether subdomains, staging environments, international versions, and legacy domains belong in scope.
Step 2: Build your link inventory
For internal and outgoing links, a crawler can reveal the source page, destination URL, anchor text, response code, and redirect path. Screaming Frog, for example, can identify broken links and export the pages where those links occur; its free version can crawl up to 500 URLs.
For backlinks, export data from the sources available to you. Combining datasets is often more useful than trusting one giant list because different providers discover different links.
Your working spreadsheet might include:
- Source URL
- Destination URL
- Link type
- Status code
- Anchor text
- Referring domain
- First or last observed date
- Action required
- Priority
- Notes
That final column matters more than it looks. Six months later, you will want to know why someone decided a link was safe, valuable, obsolete, or worth investigating.
Step 3: Find broken and redirected links
Start with obvious failures: 404 and other client-error responses.
Then look at redirects. A link that points straight to a 200-status final URL is generally cleaner than one that passes through several intermediate destinations. Screaming Frog specifically identifies multi-hop redirect chains and recommends updating internal links to the final destination.
Do not blindly replace every redirect, though. Some redirects are deliberate and appropriate. The question is whether the link itself has become stale.
Step 4: Look for orphaned and under-connected pages
An orphan page exists but has no meaningful internal links pointing toward it. That makes it surprisingly easy for useful information to become disconnected from the rest of a website.
The classic scenario is a company publishing an excellent guide, then never linking to it from related articles, category pages, or navigation. The content exists, but the surrounding site behaves as though it does not.
A better audit asks two questions:
Can the page be reached?
Can the page be reached naturally from the pages that should lead to it?
The second question is where many basic audits stop too early.
Step 5: Review backlinks manually
Backlink tools often assign labels or risk scores, but those are triage signals, not final verdicts.
Look at the actual referring page. Is the link editorially relevant? Does the surrounding content make sense? Is the site clearly built to provide useful information, or is it essentially a pile of automatically generated pages?
A low-authority community website can produce a perfectly legitimate link. Conversely, a polished-looking domain can contain manipulative or irrelevant links. Metrics help you sort the pile; context helps you judge it.
The Disavow Question: Don’t Reach for the Nuclear Button
This is one of the most misunderstood parts of a link audit.
Google explicitly says that most sites do not need to use its disavow tool and recommends using it cautiously. It says disavow should generally be considered when a site has a considerable number of spammy or artificial links and those links have caused, or are likely to cause, a manual action.
That means a giant list of strange links is not automatically a crisis.
For example, suppose your site has accumulated hundreds of backlinks from random websites you have never heard of. Before disavowing anything, ask whether there is evidence that you or an agency deliberately created those links as part of a manipulative campaign.
If the answer is no, automatic cleanup can create more risk than the links themselves.
When removal makes sense
If you identify links that were deliberately created through paid schemes, manipulative link networks, or other prohibited practices, removal is the preferred first step. Google recommends making a good-faith effort to get problematic links removed before relying on the disavow process.
Document those efforts.
That documentation becomes particularly important when dealing with a manual action, because Google asks site owners to explain what they removed, what they could not remove, and how the underlying problem was addressed.
A Better Way to Judge “Toxic” Links
The word toxic sounds precise. In practice, it can be misleading.
Many commercial backlink tools use their own signals and scoring systems to identify suspicious links. Semrush, for example, uses multiple markers and gives users workflows for reviewing, ignoring, contacting site owners, or preparing a disavow file.
Treat those scores as screening mechanisms, not medical diagnoses.
A useful manual review considers:
Relevance
Does the page linking to you have a genuine topical connection?
Intent
Was the link naturally included because it helps the reader, or does it look deliberately placed to manipulate signals?
Placement
Is it part of meaningful editorial content, or buried in a list of unrelated links, boilerplate, or automatically generated pages?
Pattern
One strange link is usually less informative than a consistent pattern involving hundreds of similar domains, anchors, or placements.
History
Was the link inherited from an old agency, old domain owner, site migration, or previous campaign?
Patterns are often more revealing than individual links.
Internal Links vs. Backlinks: What Should You Audit?
These two audits overlap, but they solve different problems.
| Area | Internal link audit | Backlink audit |
| Main focus | Website structure | Links from other sites |
| Common problems | 404s, redirects, orphan pages | Manipulative links, lost links |
| Best data source | Site crawler | Backlink databases + Search Console |
| Manual review | Destination and context | Referring page and link intent |
| Typical fixes | Update, replace, remove, redirect | Reclaim, request removal, monitor |
| Biggest mistake | Fixing technical issues without improving structure | Disavowing everything suspicious |
For most sites, internal auditing is the easier place to begin because you control the source links.
Backlink auditing is messier. You often cannot edit the referring page, data providers may disagree, and the difference between harmless weirdness and genuinely manipulative behavior requires judgment.
Common Link Audit Mistakes
Treating every 404 as an emergency
A broken link matters most when it affects an important user journey, a frequently visited page, or a valuable resource.
Judging backlinks by one metric
Domain scores can be useful for sorting, but they cannot tell you whether a specific link is contextually legitimate.
Disavowing by volume
A large backlink profile can contain plenty of junk without requiring mass disavowal. Google explicitly warns that incorrect use of the tool can harm a site’s performance.
Ignoring lost links
A lost backlink from an influential article can be more valuable to investigate than ten newly discovered low-quality links.
Fixing the link but not the underlying page
Replacing a broken URL is only half the job if the destination itself is outdated, thin, duplicated, or no longer the best resource.
The best audits fix systems, not just symptoms.
How Often Should You Run a Link Audit?
There is no universal schedule.
A small, stable website might need a deeper audit once or twice a year, with lightweight monitoring between major reviews. A large publishing site, ecommerce operation, or frequently redesigned website may benefit from more regular checks.
Run an additional audit after a major migration, domain change, redesign, restructuring, or agency handover.
Those are the moments when URLs tend to move, redirects accumulate, and previously valuable connections get lost.
What a Useful Audit Deliverable Looks Like
The final output should not be a giant spreadsheet that nobody wants to open again.
A better deliverable separates findings into four buckets:
Fix now: broken links, important redirect chains, critical navigation problems.
Investigate: suspicious backlink patterns, unusual anchor text, unexplained losses.
Recover: valuable lost backlinks, outdated references, strong pages with weak internal connections.
Monitor: low-impact anomalies that do not justify immediate action.
This approach turns a technical inspection into a decision-making document.
The best link audit ends with fewer unanswered questions, not more rows in a spreadsheet.
FAQ
What is a link audit?
A link audit is a systematic review of a website’s internal links, outgoing links, and backlinks to identify broken destinations, redirects, structural gaps, suspicious patterns, and recovery opportunities.
How long does a link audit take?
A small website can be reviewed in a few hours, while a large site with thousands or millions of URLs may require crawling, data exports, manual sampling, and staged remediation.
Are all bad-looking backlinks harmful?
No. A backlink can look weak according to a third-party metric and still be legitimate. Context, intent, relevance, and patterns are more informative than a single score.
Should I disavow spam backlinks?
Usually not automatically. Google says most sites do not need the disavow tool and recommends considering it mainly when there is a substantial volume of spammy or artificial links associated with a manual action or likely manual action.
What is the difference between a backlink audit and an internal link audit?
A backlink audit examines links coming from other websites. An internal link audit examines how pages within your own website connect to one another, including broken links, redirects, anchor text, and page accessibility.
Key Takeaways
- A link audit is broader than checking for 404 errors.
- Review internal links, outgoing links, redirects, and backlinks separately but interpret them as one connected system.
- Prioritize problems by business and user impact, not by the size of an issue report.
- A backlink tool’s “toxic” score is a screening signal, not an automatic verdict.
- Google says most sites do not need to disavow ordinary spammy backlinks.
- Important lost links can be worth recovering just as much as broken links are worth fixing.
- The strongest audit produces a prioritized action list rather than an intimidating spreadsheet.
Additional Resources
- Link best practices for Google: Explains crawlable links, anchor text, and implementation details straight from Google’s documentation.
